Collocations for unfit - adj.

be, look | become | make sb/sth, render sb/sth
His conduct made him unfit to act as director of a company.

consider sb/sth, declare sb/sth, deem sb/sth, find sb/sth
The house was declared quite unfit for human habitation.

completely, quite, totally, wholly | medically, mentally, physically

for
completely unfit for our purposes She was found unfit for work.

be, feel, look, seem | become

very | completely, quite | slightly